Freezers

例句:

• Over 600 United States patents have been granted for ice machines alone, to say nothing of refrigerating buildings, refrigerator cars, domestic refrigerators, and ice cream freezers, etc. Edward W. Byrn. 十九世纪发明进展.
• The use of salt and ice in ice-cream freezers is a practical application of this principle. 伯莎M.克拉克. 科学通论.

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